Definition of gage block
: a hardened steel block that is used by machinists for extremely accurate measurement and has two opposite surfaces ground and lapped plane and parallel to a thickness within a few millionths of an inch of its designated size and usually forms one of a graduated set of which two or more are often used in combination —called also precision block, size block
Join MWU now and get access to America’s largest dictionary, with:
- 300,000 words that aren't in our free dictionary
- Expanded definitions, etymologies, and usage notes
- Advanced search features
- Ad free!
Seen and Heard
What made you want to look up gage block? Please tell us where you read or heard it (including the quote, if possible).